I think before you worry about being able to see, you should try it out first.
There are certainly times when I wish I could see exactly where I am, but as coolnature says, I have developed a feel for it and rarely, at this point, do I really wish I had a better view. Sure, I'd like the visibility of a CTL. It would make it more fun. But you do get the feel for where you are and where the tips are in relation to the trees or whatever. And, when you bump up against the inside portion of the claws, you know it. I think, I would have knocked a camera off my FEL 10x by now, had I installed one. Perhaps welding a pipe onto the FEL arm and placing the camera inside would protect it enough.
But, I've used this thing to clear a ton of fence, brush, and trees. At the very beginning, it would have added utility, but at this point, I don't know if it would really add much to my ability to use it. Personally, I wouldn't worry about it, until you tried it out, and found that it was necessary.
All this does not mean I am not jealous of 4570man's CTL usage.